This is the fourth and presumably last collection in Richard Hickox's invaluable survey of Frank Bridge's orchestral music for Chandos, one of the most important contributions to British music on disc in the last decade.

Though a couple of pieces here - the first world war choral setting of Thomas à Kempis, A Prayer, and the touching little Lament, for a nine-year-old victim of the sinking of the Lusitania in 1916 - are surely included more for completeness than anything else, two of Bridge's most interesting late achievements, Oration and Rebus, have been kept for this final instalment, and both are among the finest products of British orchestral music in the inter-war years.

The cello "concerto elegiaco" Oration, completed in 1930, is marginally the better known of the two, and arguably the more striking, affecting work. It's a protest work against war in general, and surely served in some respects as a forerunner for the Sinfonia da Requiem by his pupil Benjamin Britten. The single movement is a synthesis of rhapsody and sonata form; the cello part is ruminative rather than showy, and the orchestral writing predominantly dark-hued.

When Bridge completed Rebus, he had barely six months to live, but before his death in January 1941, he began work on a large-scale symphony for string orchestra. What survives is a single span of music, more than 13 minutes of it. It's fascinating to hear - the clear outlines suggest Bridge might have been simplifying his music after the complexity and chromaticism of the 1920s and 30s - and certainly worth a place in any survey of this remarkable music.